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Topics - Mister URL

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I have a nuvi 850, loaded with city maps CN North America NT 2010.20. It works fine, is unlocked and everything. But I cannot figure out how to make the map on it transfer into MapSource so I can see it on m PC and use the Trip & Waypoint software.

When I tell it to transfer from the device to the PC using MapSource, it brings in only a yellow box. When I tried the tutorial to convert the .img files, it appears to work, and the mapset shows up listed in MapSource, but it says it is locked. When I try to unlock it (I have the unlock code) it sends me online, and Garmin tries to unlock it on the GPS unit. I am baffled. I'm sure I'm doing something wrong. Can anyone tell me what that something is?

Thanks.

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I have a Garmin nuvi 850. Long ago, I had a Garmiin GPSmap 276c for ocean navigation. I still have the Bluewater CD. Does anyone know if the nuvi will properly display marine charts? There is a mode for on the road, bicycling, and pedestrian but no marine mode on the nuvi.

Or, maybe downloading NOAA charts in bsb format and converting them to run on the Garmin?

Thanks.

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General Discussion / Dynamite site!
« on: September 07, 2009, 04:13:10 PM »
I bought a Garmin 276C for my boat years ago and had only the marine maps. I got rid of the boat and didn't want to pay Garmin for their road map CD. This has saved my unit from being a paperweight.

I have one question. I have downloaded the excellent SE United States topo map and it is great. How do I determine if the Map Datum WGS84 that Garmin defaults to is the correct one to use with that download? Is WGS84 pretty universal?

Thanks. And thanks again for the website.

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